package com.million.vod.service.impl;

import com.aliyun.vod.upload.impl.UploadVideoImpl;
import com.aliyun.vod.upload.req.UploadStreamRequest;
import com.aliyun.vod.upload.resp.UploadStreamResponse;
import com.aliyuncs.DefaultAcsClient;
import com.aliyuncs.exceptions.ClientException;
import com.aliyuncs.vod.model.v20170321.DeleteVideoRequest;
import com.million.servicebase.exception.GuliException;
import com.million.vod.service.VodService;
import com.million.vod.utils.ConstantVodUtils;
import com.million.vod.utils.InitVodClient;
import org.apache.commons.lang3.StringUtils;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.InputStream;
import java.util.List;

/**
 * @Author: studyboy
 * @Date: 2022/3/29  15:19
 */
@Service
public class VodServiceImpl implements VodService {


    //上传视频
    @Override
    public String uploadVideo (MultipartFile file) {

        try {
            //accessKeyId, accessKeySecret
            //fileName：上传文件原始名称
            // 01.03.09.mp4
            String fileName = file.getOriginalFilename();
            //title：上传之后显示名称
            String title = fileName.substring(0, fileName.lastIndexOf("."));
            //inputStream：上传文件输入流
            InputStream inputStream = file.getInputStream();
            UploadStreamRequest request = new UploadStreamRequest(ConstantVodUtils.ACCESS_KEY_ID, ConstantVodUtils.ACCESS_KEY_SECRET, title, fileName, inputStream);
            request.setStorageLocation("outin-f43b1ec9ae7311eca3fe00163e12ac16.oss-cn-shenzhen.aliyuncs.com");
            request.setApiRegionId("cn-shenzhen");
            UploadVideoImpl uploader = new UploadVideoImpl();
            UploadStreamResponse response = uploader.uploadStream(request);

            String videoId = null;
            if (response.isSuccess()) {
                videoId = response.getVideoId();
            } else { //如果设置回调URL无效，不影响视频上传，可以返回VideoId同时会返回错误码。其他情况上传失败时，VideoId为空，此时需要根据返回错误码分析具体错误原因
                videoId = response.getVideoId();
            }
            return videoId;
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }

    //根据视频id 删除视频
    @Override
    public void deleteVod (String id) {

        try {
            //初始化对象
            DefaultAcsClient client = InitVodClient.initVodClient(ConstantVodUtils.ACCESS_KEY_ID, ConstantVodUtils.ACCESS_KEY_SECRET);
            //创建删除视频request对象
            DeleteVideoRequest request = new DeleteVideoRequest();
            //想request设置删除视频的id
            request.setVideoIds(id);
            //调用初始化对象的方法实现删除
            if (id == null) {
                throw new GuliException(20001, "该小节无视频");
            } else {
                client.getAcsResponse(request);
            }
        } catch (ClientException e) {
            e.printStackTrace();
            throw new GuliException(20001, "删除视频失败");
        }
    }

    //根据课程id 删除该课程下的所有视频，用List  来封装，方便删除
    @Override
    public void removeAllVod (List<String> videoList) {
        try {
            //初始化对象
            DefaultAcsClient client = InitVodClient.initVodClient(ConstantVodUtils.ACCESS_KEY_ID, ConstantVodUtils.ACCESS_KEY_SECRET);
            //创建删除视频request对象
            DeleteVideoRequest request = new DeleteVideoRequest();
            //videoList 里面包含了该课程下的所有视频id
            //方式一：可以遍历list 集合，做拼接，将视频id 一个个拼接下来
            //方式二：使用StringUtils 工具类，org.apache.commons.lang3
            //形式为 id1,id2,id3...
            String join = StringUtils.join(videoList.toArray(), ",");
            //向request设置删除视频的id
            request.setVideoIds(join);
            //调用初始化对象的方法实现删除
            client.getAcsResponse(request);
        } catch (ClientException e) {
            e.printStackTrace();
            throw new GuliException(20001, "删除视频失败");
        }
    }
}
